BY FREDERICK A. A. SKUSE. 251 



It is not possible to ascertain from the descriptions to what 

 genera of the Chironomina the following should be referred, 

 mention of most of the characters essential to notice being entirely- 

 omitted. Those described by Walker all fall into the section with 

 naked wings, while C. conjionctus, C. ojypositus, C. aj^plicatus, and 

 C. alternans have the tibia longer than the metatarsus in the fore- 

 legs. I do not believe that G. conjungens, C. opponens, C. rejlectus^ 

 and C. proximus, named by Walker in his " Notes," have ever 

 been described. 



240. Chironomus alternans, Walker, 



Chironomus alternans, Walk., Insecta Saundersiana, Yol. I. 

 Diptera, 1856. p. 423 (Div. 1, Alse nudse. Sub-div. 1, Halteres 

 pallidi). 



" (^. — Testaceus ; antennce fuscoi ; thorax vittis duabus dorsal- 

 ihus lateribusque viridibus ; abdomen vii'lde, pitbescens, vitta 

 interrup)ta Jusca dorsali ; pedes virides, pubescentes, tibiis et 

 tarsorum articulis apice fuscescentibus ; alee limpidce, venis tes- 

 taceis, litura discali sicb-obscuriore. 



"Testaceous. Antennse brown. Thorax green on each side, 

 and with two green dorsal stripes. Abdomen green, pubescent, 

 with an interrupted brown dorsal stripe. Legs green, long, slender, 

 pubescent; tips of the tibiae and of the joints of the tarsi brownish; 

 fore-tibia very much longer than the fore-metatarsus. Wings 

 limpid ; veins testaceous ; discal mark a little darker, not distinct. 

 Length of the body 4 lines, of the wings 6 lines. 



Hab.—" New South Wales." 



241. Chironomus applicatus. Walker. 



Chironomus ajjpUcatus, Walk., Insecta Saundersiana, Vol. I. 

 Diptera, 1856, p. 424 (Div. 1, Alse nudsB. Sub-div. 1, Halteres 

 pallidi). 



"5. — Ganus; antennce fuscm ; thorax fusco trivittatus; abdomen 

 fuscum, fasciis ventreque canis; pedes viridescentes, sub-pubescentes, 

 tarsis fere totis feTnoribusque tibiisque apice fuscescentibus ; aim 

 sub-cinereoi, venis fuscis, litura discali obscuriore. 



